A radiation imaging apparatus, which comprises a sensor array in which a plurality of pixels are arranged in a matrix form, cyclically perform a storing operation that stores charge in the pixels and a reading out operation that reads out the charge stored in the pixels, based on a synchronization signal comprised of a cyclical pulse train and a timing control signal synchronized to the synchronization signal. The radiation imaging apparatus changes a phase of the timing control signal in relation to the synchronization signal in accordance with a range of a partial region for trimming in a region of the sensor array in which read out is possible.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A radiation imaging apparatus, comprising: a sensor array in which a plurality of pixels are arranged in a matrix form; and a control unit configured to, based on a synchronization signal comprised of a cyclical pulse train and a timing control signal synchronized to the synchronization signal, cyclically perform a storing operation that stores charge in the pixels and a reading out operation that reads out the charge stored in the pixels, wherein the control unit, in accordance with a range of a partial region for trimming in a region of the sensor array in which read out is possible, changes a phase of the timing control signal in relation to the synchronization signal.
2. The radiation imaging apparatus according to claim 1 , wherein the control unit, in one cycle of the synchronization signal, performs the storing operation that stores charge in the pixels and the reading out operation that reads out the charge stored in the pixels.
3. The radiation imaging apparatus according to claim 1 , wherein in synchronization with the synchronization signal, the reading out operation is started or the storing operation is terminated, and at a timing at which a pulse of the timing control signal falls, the reading out operation is terminated or the storing operation is started.
4. A radiation imaging apparatus, comprising: a sensor array in which a plurality of pixels are arranged in a matrix form; and a control unit configured to perform a storing operation that stores charge in the pixels and a reading out operation that reads out the charge stored in the pixels at a predetermined cycle, wherein the control unit, in accordance with a range of a partial region for trimming in a region of the sensor array in which read out is possible, changes the cycle and a ratio between a period over which the storing operation is performed and a period over which the reading out operation is performed in one cycle.
5. The radiation imaging apparatus according to claim 4 , wherein the control unit changes the cycle and the ratio so that the period over which the storing operation is performed does not change.
6. The radiation imaging apparatus according to claim 4 , wherein the control unit, based on a synchronization signal configured from a cyclical pulse train and a timing control signal synchronized to the synchronization signal, performs the storing operation and the reading out operation, and in accordance with the range of the partial region for trimming, changes a phase of the timing control signal in relation to the synchronization signal.
7. A radiation imaging apparatus, comprising: a sensor array in which a plurality of pixels are arranged in a matrix form; and a control unit configured to perform a storing operation that stores charge in the pixels and a reading out operation that reads out the charge stored in the pixels at a predetermined cycle, wherein the control unit, in accordance with the cycle, changes a range of a partial region for trimming in a region of the sensor array in which read out is possible, and a ratio between a period over which the storing operation is performed and a period over which the reading out operation is performed in one cycle.
8. The radiation imaging apparatus according to claim 7 , wherein the control unit changes the range and the ratio so that the period over which the storing operation is performed does not change.
9. A radiation imaging apparatus, comprising: a sensor array in which a plurality of pixels are arranged in a matrix form; and a control unit configured to, based on a synchronization signal comprised of a cyclical pulse train and a timing control signal synchronized to the synchronization signal, perform, at a predetermined cycle, a storing operation that stores charge in the pixels and a reading out operation that reads out the charge stored in the pixels, wherein the control unit, in accordance with a designated imaging part, changes a phase of the timing control signal in relation to the synchronization signal.
10. The radiation imaging apparatus according to claim 9 , wherein the control unit changes a ratio between a period over which the storing operation is performed and a period over which the reading out operation is performed in one cycle of the synchronization signal.
11. The radiation imaging apparatus according to claim 10 , wherein the control unit changes the cycle and the ratio so that the period over which the storing operation is performed does not change.
12. A method of controlling a radiation imaging apparatus having a sensor array in which a plurality of pixels are arranged in a matrix form, the method comprising: based on a synchronization signal comprised of a cyclical pulse train and a timing control signal synchronized to the synchronization signal, cyclically performing a storing operation that stores charge in the pixels and a reading out operation that reads out the charge stored in the pixels; and in accordance with a range of a partial region for trimming in a region of the sensor array in which read out is possible, changing a phase of the timing control signal in relation to the synchronization signal.
13. A method of controlling a radiation imaging apparatus having a sensor array in which a plurality of pixels are arranged in a matrix form, the method comprising: performing a storing operation that stores charge in the pixels and a reading out operation that reads out the charge stored in the pixels at a predetermined cycle; and in accordance with a range of a partial region for trimming in a region of the sensor array in which read out is possible, changing the cycle and a ratio between a period over which the storing operation is performed and a period over which the reading out operation is performed in one cycle.
14. A method of controlling a radiation imaging apparatus having a sensor array in which a plurality of pixels are arranged in a matrix form, the method comprising: performing a storing operation that stores charge in the pixels and a reading out operation that reads out the charge stored in the pixels at a predetermined cycle; and in accordance with the cycle, changing a range of a partial region for trimming in a region of the sensor array in which read out is possible, and a ratio between a period over which the storing operation is performed and a period over which the reading out operation is performed in one cycle.
15. A method of controlling a radiation imaging apparatus having a sensor array in which a plurality of pixels are arranged in a matrix form, the method comprising: based on a synchronization signal comprised of a cyclical pulse train and a timing control signal synchronized to the synchronization signal, performing, at a predetermined cycle, a storing operation that stores charge in the pixels and a reading out operation that reads out the charge stored in the pixels; and in accordance with a designated imaging part, changing a phase of the timing control signal in relation to the synchronization signal.
16. A radiation imaging apparatus, comprising: a sensor array in which a plurality of pixels are arranged in a matrix form; and a control unit configured to, based on a synchronization signal comprised of a cyclical pulse train and a timing control signal synchronized to the synchronization signal, perform a storing operation that stores charge in the pixels and a reading out operation that reads out the charge stored in the pixels at a predetermined cycle, wherein the control unit, changes a ratio between a period over which the storing operation is performed and a period over which the reading out operation is performed in one cycle by changing a phase of the timing control signal in relation to the synchronization signal.
17. A method of controlling a radiation imaging apparatus having a sensor array in which a plurality of pixels are arranged in a matrix form, the method comprising: based on a synchronization signal comprised of a cyclical pulse train and a timing control signal synchronized to the synchronization signal, performing a storing operation that stores charge in the pixels and a reading out operation that reads out the charge stored in the pixels at a predetermined cycle; and changing a ratio between a period over which the storing operation is performed and a period over which the reading out operation is performed in one cycle by changing a phase of the timing control signal in relation to the synchronization signal.
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August 14, 2017
December 25, 2018
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